Disodium Phosphate

INDUSTRIAL RAW MATERIALS

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磷酸氢二钠(DSP)

Disodium Phosphate

化学式：Na2HPO4.nH2O(n=0,12)

Chemical formula：Na2HPO4.nH2O(n=0,12)

分子量：Na2HPO4.12H2O--358.15, Na2HPO4--141.98

Molecular weight：Na2HPO4.12H2O--358.15, Na2HPO4--141.98

执行标准Standard executed: HG/T2965-2009(Tech grade), GB25568-2010(Food grade)

CAS号CAS Number：7758-79-4

性状：无水产品为白色粉末，有水为白色或无色流砂粒状结晶体，在空气中易风化，溶于水，不溶于醇，水溶液呈弱碱性，250℃分解成焦磷酸钠。

Property：Anhydrous goods is white powder and Hydrous goods is white or colorless, crystalline free flowing solid, efflorescence in air, soluble in water easily.

技术指标: Technical Specifications：

序号 No.	指标名称 Specifications	12水物 Na2HPO4.12H2O		无水物 Na2HPO4
序号 No.	指标名称 Specifications	工业级 Tech Grade	食品级 Food Grade	工业级 Tech Grade	食品级 Food Grade
1	主含量 Main content % ≥	98.0	98.0	98.0	98.0
2	1%水溶液PH值 PH of 1% solution	9±0.2	9±0.2	9±0.2	9±0.2
3	硫酸盐 Sulfate, as SO4 % ≤	0.7	-	-	-
4	氯化物 Chloride, as CI % ≤	0.05	-	-	-
5	氟化物 Fluoride, as F % ≤	0.05	0.005	0.05	0.005
6	重金属 Heavy metal, As Pb % ≤	-	0.001	-	0.001
7	砷 Arsenic, as AS % ≤	0.005	0.0003	0.005	0.0003
8	水不溶物 Water insoluble % ≤	0.05	0.20	0.10	0.20
9	干燥减量 Loss on drying % ≤	-	61	5	5

用途：主要用作织物、木材和纸张的防火剂，锅炉软水剂，染料助剂，食品添加剂，酸度缓冲剂及釉药、焊药、焙药、电镀、鞣革的制造，焦磷酸盐的制造等。

Uses：Used as fire-extinguishing agent for fabric, woods, paper; as soft water agent for boilers; as food additive, and so on.

包装：内塑外编，每袋净重25 Kg、 50Kg 、1000Kg，贮于通风干燥处。

Packing：Plastic woven bag. Net weight 25 Kg、 50Kg 、1000Kg , store at a cool, dry and well ventilated place.

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